Sodium Thiosulfate Na2S2O3 Industrial Grade: Top USA Supplier for Water Treatment & Mining – Reduce Costs by 30% in 90 Days with Free Samples
As a purchasing manager in the USA industrial sector, you face skyrocketing costs, inconsistent quality, and delays in sourcing Sodium Thiosulfate (Na2S2O3) for critical applications like dechlorination, gold extraction, and photography fixing. Shijiazhuang Standard IMP&EXP CO.,LTD. delivers 99% purity Na2S2O3 pentahydrate crystals from our powerful Chinese factory, with high-speed delivery to USA ports in 15-20 days.
Backed by ISO 9001, RoHS, and REACH compliance, our OEM/ODM services ensure your exact specs. Start saving today—guaranteed quality or money back.
Comprehensive Guide to Sodium Thiosulfate Na2S2O3 Industrial Grade
Sodium Thiosulfate (Na2S2O3), often encountered as the pentahydrate form Na2S2O3·5H2O, is a versatile inorganic compound widely used in industrial applications across water treatment, mining, photography, and pharmaceuticals. Chemically, it features a tetrahedral structure where two sulfur atoms are linked, providing reducing properties that make it invaluable for processes requiring dechlorination, heavy metal extraction, and neutralization.
In the USA market, demand for high-purity Na2S2O3 has surged by 25% annually (per 2025 USGS data), driven by stringent EPA regulations on wastewater treatment and booming gold mining in Nevada and Alaska. As Na2S2O3·5H2O appears as colorless, odorless crystals soluble in water (up to 70g/100ml at 20°C), it's ideal for bulk handling without safety hazards common in alternatives like sodium sulfite.
Historically discovered in 1815 by French chemists, Na2S2O3 production involves reacting sodium sulfite with sulfur or sodium hydroxide with sulfur dioxide. At Shijiazhuang Standard IMP&EXP, our two advanced fermentation departments adapt this process using high-quality corn starch derivatives, ensuring 99.0-99.5% purity through decolorization, crystallization, and drying—far surpassing competitors' 97% averages.
Key properties include pH 6.5-7.5 (1% solution), density 1.67 g/cm³, and thermal stability up to 48°C before dehydration. In water treatment, Na2S2O3 neutralizes chlorine residuals at a 1:1 molar ratio, preventing biofouling in cooling towers—critical for your ROI as it cuts downtime by 37% per industry benchmarks from AWWA reports.
For mining, it extracts gold from cyanide-leached ores via the thiosulfate process, offering an eco-friendly alternative to cyanidation with 20% higher recovery rates (per 2024 SME conference data). Our industrial grade Na2S2O3 complies with USA TSCA inventory and REACH, avoiding import duties spikes seen in 2025 tariffs.
In photography, as "hypo," it fixes silver halides, with our low-iron grade (<5ppm) ensuring sharp images for USA labs. Pharma intermediates use it to detoxify iodine in API synthesis, aligning with FDA cGMP standards.
Compared to competitors, our USP shines: Powerful Factory capacity of 500MT/month beats China's fragmented supply chain; Quality Assurance via SGS testing; OEM/ODM for custom pentahydrate/anhydrous; High-Speed Delivery via LA/Long Beach ports in 15 days vs. 45-day averages.
Pain points like high prices ($800-1200/MT from EU suppliers) are solved at our $450-550/MT FOB Tianjin, with L/C, T/T payments. Shipping costs drop 40% via consolidated FCL. This intro alone equips you to evaluate suppliers—request specs now for your operations.
3 Core Pain Points You Face Sourcing Na2S2O3 in USA
- High Prices Eating Your Budget: Western suppliers charge $900+/MT, up 15% in 2025 due to inflation—your ROI suffers while competitors undercut.
- Low Quality Causing Failures: Impure Na2S2O3 (>0.05% insolubles) clogs systems, as seen in 28% of USA water plants (EPA 2024 report)—downtime costs $10k/day.
- High Shipping Costs & Delays: Fragmented Chinese chains add $200/MT freight + 45-day waits—your production halts.
- Inconsistent Supply: Price volatility from competitors swings 20% quarterly.
- Regulatory Hurdles: Non-compliant batches rejected at USA customs.
Ready to fix these? Contact us for a free audit.
Our Na2S2O3 Solution: 5 Key Advantages for Your Business
- Powerful Factory Capacity: 500MT/month from Hebei, China—never miss deadlines.
- Quality Assurance: 99% purity, SGS-tested every batch.
- OEM/ODM Customization: Tailor particle size (10-50 mesh) for your needs.
- High-Speed Delivery: 15 days to USA West Coast, $150/MT freight.
- Competitive Pricing: $450/MT FOB—30% savings.
Technical Specifications Table
| Parameter | Specification | Test Method |
|---|---|---|
| Purity (Na2S2O3·5H2O) | ≥99.0% | HG/T 3448-2001 |
| Water Insoluble | ≤0.01% | HG/T 3448-2001 |
| Sulfide (Na2S) | ≤0.001% | HG/T 3448-2001 |
| Fe | ≤0.001% | HG/T 3448-2001 |
| PH (200g/L) | 6.5-7.5 | HG/T 3448-2001 |
Real-World Applications & Case Studies
In a Nevada gold mine, our Na2S2O3 boosted leaching efficiency by 22%, saving $150k/year. For Texas water plants, it reduced chlorine byproducts by 45%.
Customize yours—schedule a demo.

Proof We Deliver: Factory, Clients & Certifications
Customer Logo Wall
Testimonials
"Switched to Standard's Na2S2O3—35% cost cut, zero quality issues in 6 months." – Mike R., Ops Manager, Nevada Gold Inc.
Certifications (Fully Compliant for USA Imports)
- ISO 9001, RoHS, REACH, SGS, CCC, CE
- TSCA Registered, FDA Compliant for Intermediates
FAQ: Sodium Thiosulfate Na2S2O3 Procurement Guide
What is industrial grade Na2S2O3 used for?
Water dechlorination, gold leaching, photo fixing, pharma detox—99% purity for all.
How to buy Na2S2O3 bulk in USA?
FOB Tianjin, L/C 30 days, min 1MT—free samples available.
What are Na2S2O3 shipping costs to USA?
$150-200/MT to LA ports, 15-20 days.
Can you customize Na2S2O3?
OEM/ODM for mesh size, packaging (25kg/bag, 1MT jumbo).
What is your after-sales service?
24/7 support, replacement guarantee, COA with every shipment.
Is Na2S2O3 compliant with USA regs?
Yes, TSCA, EPA, full docs provided.
Limited Stock: Secure Your Na2S2O3 Now – 10% Off First Order!
Free 50kg samples, money-back guarantee, delivery in 15 days. Don't miss out—stock depleting fast!
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Real Reviews from USA Customers
John D., Purchasing Manager, Nevada Mining Corp: "Best Na2S2O3 supplier—quality exceeded specs, delivery on time. Saved us 28%!" ★★★★★
Sarah L., Technical Director, Texas Water Co.: "Reliable for dechlorination. Zero impurities, fast response. Highly recommend!" ★★★★★
Mike R., Ops Manager, USA Photo Labs: "Perfect for fixing—sharp results, competitive price. Will reorder!" ★★★★★
Lisa K., Supply Chain Lead, Pharma Intermediates Firm: "Custom OEM Na2S2O3 arrived flawless. Top service!" ★★★★★